Hydrant



UNITED STATES PATENT OFFICE.

C. J. COWPERTHVVAITE, OF PHILADELPHIA, PENNSYLVANIA.

HYDRANT.

Specification of Letters Patent No. 14,805, dated May 6, 1856.

T0 all whom t may concern Be it known that I, C. J. COWPERTHWAITE, of the city and count-y of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in I-Iydrants; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specication, in which- Figure l, is an elevation of my improvenient. Fig. 2, is a vert-ical section of ditto, m, a", Fig. l, showing the plane of section.

Similar letters of reference. indicate corresponding parts in both figures.

My invention consists in the employment of what I term a protector, which covers the nozzle of the hydrant, the protector being connected with the valve rod in such a manner, that when it is moved free from the nozzle, the valve will be operated and the water allowed to pass up through the pipe within the case of the hydrant and out through the nozzle.

My invention also consists in the peculiar arrangement of a slide or D valve as will be presently shown and described whereby a stuiing box is dispensed with.

My invention further consists in the peculiar manner of securing the several parts of the hydrant, within the case, whereby they may, when necessary be removed from the case, and also adjusted therein with the greatest facility.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A, represents the case of the hydrant which may be constructed of cast iron and of the usual form.

B, is the cap attached to the upper part of the case, by screws.

' C, is the nozzle of the case t-he inner end of which is attached to a pipe D, which passes down within the case A and is attached to and communicates with a square cistern E.

W'ithin the cistern E, there is placed a slide or D valve, F, which works over the orifice of the lower end of the pipe D, and against the inner surface of one of the sides of the cistern. This valve being of D-form,

admits of an aperture (a) being made through the side of the cistern, the upper and lower ends of the valve being both in contact with the side of the cistern and preventing the escape of water through the aperture (a.) when the valve covers the orice of the pipe D, as shown clearly in Fig. 2.

G, is a rod which is attached lto the valve F. This rod extends upward within the case A, and is attached to a hooked arm which is connectedto a shaft H which extends across the upper part of the case A. The shaft H has a curved arm I, attached to its end and to the lower ends of this arm, a case or protector J, is attached, which corresponds in form to the nozzle C. A recess or out is made in the upper part of the case A, in which a slide K, is fitted, and to the slide K, a curved plate L, is attached against which the case J bears, when the nozzle C, is incased.

The lower end of the cistern E, fits over a square ledge (c) on t-he bottom of the case A, and packing may be inserted between the cistern and ledge, and a vertical rod M having a screw thread cut upon its lower end passes vertically through the center of t-he cistern and through the bottom of the case; the-.rod has a shoulder (d) upon it, which shoulder bears upon the upper part of the cistern. By turning the rod M, the screw thread will draw the shoulder CZ) firmly upon the upper end of the cistern and keep it in proper place. The rod M, extends upward nearly to the top of the case A as shown clearly in Fig. 2.

N, is a pipe which communicates with the main and with the lower part of the cistern E.

O, is a stop cock fitted in the pipe N.

The operation is as follows. When the case J, is fitted over the nozzle C, the nozzle will be completely inclosed, and the valve F will cover the lower end of the pipe D, but when the case J is moved from left to right, as shown in red, Fig. 1, the nozzle C, will be exposed and by moving the case J, the hooked arm (b) will lower the valve F and rod G, and the water will pass over the upper end of the valve up through the pipe D and out through the nozzle, C. Vhen the case J, is closed over the nozzle C, the rod G, and valve F will be raised by the arm (b) and the waste water within the pipe D, will pass out of the lower end of the pipe D, and underneath the upper projecting end of the valve F and into the lower end of the case through the opening (a) in the cistern. Thus it will be seen that when the case J, incloses the nozzle C, the water is cut oH by the valve F from the pipe D, and by moving the case J, so as to expose the nozzle the valve is lowered and the w'ater allowed to flow up through the pipe D, and nozzle C.

By unscrewing the rod M and withdrawing the slide K, the whole apparatus may be lifted from the case A, and repairs, if necessary made wit-hout diliculty, and the parts may be readily inserted again within the case. At the lower end of the case, lanches (e) are placed to guide the cistern over the ledge (c) when it is inserted within the case. By having the nozzle C, inclosed when the hydrant is not in use, it is protected from the external air and prevented from freezing up during severe weather. The slide valve arranged as shown precludes the necessity of a stuing boX and no springs are required to be applied to the valve, as the pressure of the water upon the back of the valve, within the cistern, causes it to work water tight against the side of the cistern.

Having thus described my invention, what water passage, (0.),"whereby the valve is made to work water tight., and the use of a stuffing boX and packing avoided.

3. I claim securing the cistern E, with the pipe D, and valve F attached, within the case A, by means or' the rod M, as shown, whereby the above parts may be readily detached from the case, and secured within it.

C. J. COVVPERTHVVAITE.

Witnesses C. BRAZER, (lm-LIN PULLINGER. 

